<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../js/vue.js"></script>
</head>
<body>
    <div id="root">
        <h2>人员列表</h2>
        <!-- 遍历数组 -->
        <input type="text" placeholder="请输入名字" v-model="keyWord">
        <ul>
            <li v-for="p in filPersons" :key="p.id">
                {{p.name}}-{{p.age}}
            </li>
        </ul>
    </div>
    <script>
        Vue.config.productionTip = false
        // 用watch实现
        // #region
        // new Vue({
        //     el:"#root",
        //     data:{
        //         keyWord:'',
        //         persons:[
        //             {id:'001',name:"马冬梅",age:18,sex:"女"},
        //             {id:'002',name:"周冬雨",age:19,sex:"女"},
        //             {id:'003',name:"周杰伦",age:20,sex:"男"},
        //             {id:'004',name:"温兆伦",age:21,sex:"男"}
        //         ],
        //         filPersons:[

        //         ]
        //     },
        //     watch:{
        //         keyWord:{
        //             immediate:true,
        //             handler(val){
        //                 this.filPersons = this.persons.filter(p=>{
        //                     return p.name.indexOf(val) !== -1
        //                 })
        //             }
        //         }
        //     }
        // })
        // #endregion


        // 用computed实现
        new Vue({
            el:"#root",
            data:{
                keyWord:'',
                persons:[
                    {id:'001',name:"马冬梅",age:18,sex:"女"},
                    {id:'002',name:"周冬雨",age:19,sex:"女"},
                    {id:'003',name:"周杰伦",age:20,sex:"男"},
                    {id:'004',name:"温兆伦",age:21,sex:"男"}
                ]
            },
            computed:{
                filPersons(){
                    return this.persons.filter(p=>{
                        return p.name.indexOf(this.keyWord) !== -1
                    })
                }
            }
            
        })
    </script>
</body>
</html>